Daiken Chemical Co., Ltd.

Osaka Municipal Technical Research Institute

Shinsuke Matsumura

Masami Nakamoto

Mari Yamamoto

Yukiyasu Kashiwagi

Yukio Yoshida

Hiroshi Kakiuchi

Metal nanoparticles having improved migration resistance are provided. The present invention relates to a method for manufacturing composite nanoparticles including obtaining composite nanoparticles containing at least silver and copper in a single particle by heat treating a mixture containing an organic silver compound and an organic copper compound at a temperature of 150&#xb0; C. or more in a non-oxidative atmosphere in the presence of a tertiary amine compound represented by the general formula RRRN (wherein Rthrough Rare optionally substituted alkyl groups or aryl groups that may be the same or different, Rthrough Rmay be linked in a ring, and the number of carbon atoms in each of Rthrough Ris 5 through 18 and may be the same or different).

Composite nanoparticles and manufacturing method thereof

Copper-containing nanoparticles with excellent oxidation resistance is provided. The present invention relates to a method for manufacturing copper-containing nanoparticles including obtaining copper-containing nanoparticles that contain an organic component by heat treating an organic copper compound at a temperature equal to or higher than a decomposition initiation temperature of the compound and lower than a complete decomposition temperature of the compound in a non-oxidative atmosphere in the presence of an organic material containing a 1,2-alkanediol having 5 or more carbon atoms and/or a derivative thereof.

Copper-containing nanoparticles and manufacturing method therefor

Growing community of inventors

Osaka, Japan

Shinsuke Matsumura